85686527 has 4 divisors (see below), whose sum is σ = 85709520. Its totient is φ = 85663536.

The previous prime is 85686521. The next prime is 85686541. The reversal of 85686527 is 72568658.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85686527 - 2¹⁶ = 85620991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85686521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4478 + ... + 13835.

It is an arithmetic number, because the mean of its divisors is an integer number (21427380).

Almost surely, 2^85686527 is an apocalyptic number.

85686527 is a deficient number, since it is larger than the sum of its proper divisors (22993).

85686527 is a wasteful number, since it uses less digits than its factorization.

85686527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22992.

The product of its digits is 806400, while the sum is 47.

The square root of 85686527 is about 9256.7017344192. The cubic root of 85686527 is about 440.8635365670.

The spelling of 85686527 in words is "eighty-five million, six hundred eighty-six thousand, five hundred twenty-seven".